Table 3 Agreement between PET/CT, whole-body bone scintigraphy, and clinical symptoms
|  |  |  | PET/CT functional part | κ | 95% CI | Negative agreement (%) | Positive agreement (%) | |
|---|---|---|---|---|---|---|---|---|
|  | − | + | ||||||
Anterior chest wall | Symptom | − | 2 | 6 | 0.24 | − 0.14–0.61 | 36.4 | 82.9 |
+ | 1 | 17 | ||||||
WBBS | − | 0 | 1 | − 0.06 | − 0.16–0.03 | 0 | 91.7 | |
+ | 3 | 22 | ||||||
PET/CT structural part | − | 3 | 5 | 0.45 | 0.09–0.81 | 54.5 | 87.8 | |
+ | 0 | 18 | ||||||
Cervical spine | Symptom | − | 21 | 2 | 0.51 | 0.02–0.99 | 93.3 | 57.1 |
+ | 1 | 2 | ||||||
WBBS | − | 21 | 1 | 0.70 | 0.32–1.00 | 95.5 | 75.0 | |
+ | 1 | 3 | ||||||
PET/CT structural part | − | 20 | 0 | 0.75 | 0.44–1.00 | 95.2 | 80.0 | |
+ | 2 | 4 | ||||||
Thoracic spine | Symptom | − | 15 | 8 | 0.30 | 0.01–0.59 | 78.9 | 42.9 |
+ | 0 | 3 | ||||||
WBBS | − | 13 | 1 | 0.77 | 0.52–1.00 | 89.7 | 87.0 | |
+ | 2 | 10 | ||||||
PET/CT structural part | − | 13 | 1 | 0.77 | 0.52–1.00 | 89.7 | 87.0 | |
+ | 2 | 10 | ||||||
Lumbar spine | Symptom | – | 10 | 5 | 0.55 | 0.25–0.85 | 76.9 | 76.9 |
+ | 1 | 10 | ||||||
WBBS | − | 7 | 3 | 0.44 | 0.09–0.79 | 66.7 | 77.4 | |
+ | 4 | 12 | ||||||
PET/CT structural part | − | 8 | 3 | 0.53 | 0.20–0.86 | 72.7 | 80.0 | |
+ | 3 | 12 | ||||||
Sacral spine | Symptom | − | 15 | 0 | 0.49 | 0.18–0.80 | 83.3 | 62.5 |
+ | 6 | 5 | ||||||
WBBS | − | 20 | 3 | 0.42 | − 0.05–0.88 | 90.9 | 50.0 | |
+ | 1 | 2 | ||||||
PET/CT structural part | − | 19 | 0 | 0.79 | 0.51–1.00 | 95.0 | 83.3 | |
+ | 2 | 5 | ||||||
Sacroiliac joint | Symptom | − | 12 | 3 | 0.17 | − 0.19–0.54 | 70.6 | 44.4 |
+ | 7 | 4 | ||||||
WBBS | − | 15 | 3 | · | − 0.05–0.74 | 81.1 | 53.3 | |
+ | 4 | 4 | ||||||
PET/CT structural part | − | 18 | 1 | 0.80 | 0.55–1.00 | 94.7 | 85.7 | |
+ | 1 | 6 | ||||||